EP4005448B1 - Appareil de traitement du sol à reconnaissance des accessoires - Google Patents

Appareil de traitement du sol à reconnaissance des accessoires Download PDF

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Publication number
EP4005448B1
EP4005448B1 EP21201809.7A EP21201809A EP4005448B1 EP 4005448 B1 EP4005448 B1 EP 4005448B1 EP 21201809 A EP21201809 A EP 21201809A EP 4005448 B1 EP4005448 B1 EP 4005448B1
Authority
EP
European Patent Office
Prior art keywords
polarity
floor care
accessory
care device
supply interface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21201809.7A
Other languages
German (de)
English (en)
Other versions
EP4005448A1 (fr
Inventor
Oliver Liebig
Thomas Helmig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP4005448A1 publication Critical patent/EP4005448A1/fr
Application granted granted Critical
Publication of EP4005448B1 publication Critical patent/EP4005448B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0095—Suction cleaners or attachments adapted to collect dust or waste from power tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2868—Arrangements for power supply of vacuum cleaners or the accessories thereof

Definitions

  • the invention relates to a floor care device with improved accessory recognition.
  • Floor care devices often have a range of detachable accessories. There are purely passive accessories such as various suction attachments or nozzles, but there are also active accessories such as suction nozzles with motor-driven brushes and/or lighting. However, conventional floor care devices cannot automatically recognize which accessories a user has attached for a floor care operation. If an accessory is not recognized by the floor care device, the device cannot adjust itself to the corresponding accessory, and an active accessory cannot then be variably controlled.
  • the invention therefore faces the problem of providing a floor care device with accessory detection that does not require additional wiring for the detection. According to the invention, this problem is solved by a floor care device having the features of patent claim 1 and a system having the features of claim 6 . Advantageous refinements and developments of the invention result from the following dependent claims.
  • the invention provides for polarity reversal of the supply of accessories.
  • accessories can be detected via the wiring that is already present for the power supply of active accessories.
  • the costs that have to be borne as a result are relatively low.
  • the measurement can be performed power-free. Both active and passive accessories can be detected.
  • the identification can be done separately from the operation by reversing the polarity.
  • the DC voltage supply interface includes a 2-wire line.
  • the switching device includes a first half-bridge for switching the first polarity and a second half-bridge for switching the second polarity.
  • an accessory is identified by detecting an influencing of the DC voltage supply interface in the state of the second polarity by one or more of an ohmic resistor, a short-circuit bridge, an open line end, a capacitor or an inductor.
  • the time after which a specific voltage level is reached could be measured. Different capacitors are charged after different times. A coil delays the flow of current.
  • the floor care device is battery operated.
  • a system comprising a floor care device according to one of the preceding claims and at least one accessory that can be detachably connected to the floor care device and further has an identification element that is set up to influence the DC voltage supply interface in the state of the second polarity to allow identification by the floor care device.
  • the accessory has at least one active component which, in the connected state, can be supplied with voltage via the DC voltage supply interface in the state of the first polarity.
  • the identification element has one or more of an ohmic resistor, a short-circuit bridge, an open line end, a capacitor or an inductor.
  • the detection path and the power path can be addressed separately via appropriate components, so that the motor or other actuators (e.g. nozzle lighting) do not affect the measurement/detection.
  • the motor or other actuators e.g. nozzle lighting
  • the active component includes a motor, an actuator or a light.
  • figure 1 shows schematically a first embodiment.
  • the separation between the part of a floor care device 1 (left) and an accessory part 2 (right) connected thereto is indicated here by a dashed line.
  • the accessory 2 can be, for example, a suction nozzle with a motor-driven floor brush. Alternatively or additionally, a Lighting or an actuator may be provided (not shown).
  • Floor care device 1 and accessory 2 are connected via a DC voltage supply interface 3,4.
  • a first half-bridge consisting of power switches T1 and T2 (T2 shown here as diode D1 according to an alternative embodiment) is provided to operate the motor M of the accessory 2 .
  • this first half-bridge T1/T2 (D1) is expanded to form a full bridge with the aid of power switches T3 and T4.
  • the floor brush or any accessories can be energized with reverse polarity (based on the polarity for normal operation of the motor M), i.e. be controlled accordingly by the control unit 5.
  • the motor M is then decoupled via a diode D2 so as not to falsify the measurement via the resistor R2 for identifying the accessory 2.
  • the diode D3 can be provided or omitted.
  • the resistor R1 is necessary in order to be able to record the generator voltage (back EMF) for speed determination in pulse pauses.
  • the voltage level can be adjusted to the measuring range via the optional voltage divider R4/R5.
  • the resistor R2 gets different values. Together with the resistor R3, a voltage divider is created.
  • the resulting specific accessory voltage can be determined via an ADC channel ADC Zub. of the control unit 5 of the floor care device.
  • the speed of the motor can be determined via an ADC channel ADC rpm of the control unit 5 .
  • a further power switch T5 is provided, which is switched on when the motor is running and which is switched off via R2 during the measurement. In the event of an error, it can also be switched off via T5.
  • UBS is the switched battery voltage.
  • Vcc is a regulated extra-low voltage provided by the control unit 5 for supplying the measurement path.
  • figure 2 shows schematically a second embodiment relating to the operating state of the accessory 2.
  • the separation between the part of a floor care device 1 (left) and an accessory 2 (right) connected thereto is indicated by a dashed line.
  • the connection in the form of the DC voltage supply interface 3, 4 can be provided, for example, in/on an intake manifold.
  • the half-bridge consisting of T1/T2 generates a PWM signal for the operation of the accessory.
  • T2 can also be designed as a diode D1, as shown here.
  • the accessory 2 for example the floor brush or any accessory, can be supplied with energy.
  • the circuit breaker T5 is turned on when the motor M is running.
  • figure 3 shows schematically a third embodiment relating to the identification status of the accessory 2. Again, the separation between the part of a floor care device 1 (left) and an accessory 2 (right) connected thereto is indicated by a dashed line. Furthermore, only the elements relevant to this state are shown.
  • T3/T4 When T3/T4 are switched on, a voltage depending on R2 can be measured at the voltage divider R2/R3.
  • the specific accessory voltage can be determined via an ADC channel ADC Zub .
  • T5 must be switched off for this measurement.
  • the measurement takes place via the same two lines, which can be provided in the intake manifold, for example. Only two lines are still required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Supply And Installment Of Electrical Components (AREA)

Claims (10)

  1. Appareil d'entretien du sol (1), comprenant :
    - une interface d'alimentation en tension continue (3, 4) pour des accessoires (2) actifs amovibles ;
    - une unité de commande (5) ;
    caractérisé par
    - un dispositif de commutation (T1, T2, D1, T3, T4), lequel est configuré pour commuter l'interface d'alimentation en tension continue (3, 4) entre une première et une seconde polarité ;
    - l'unité de commande (5) étant configurée pour régler la première polarité à l'aide du dispositif de commutation (T1, T2, D1, T3, T4) afin de faire fonctionner un accessoire (2), ou pour régler la seconde polarité à l'aide du dispositif de commutation (T1, T2, D1, T3, T4) afin d'identifier l'accessoire (2).
  2. Appareil d'entretien du sol (1) selon la revendication 1, l'interface d'alimentation en tension continue (3, 4) comprenant une ligne à 2 fils.
  3. Appareil d'entretien du sol (1) selon la revendication 1 ou 2, le dispositif de commutation (T1, T2, D1, T3, T4) comprenant un premier demi-pont (T1, T2, D1) pour la commutation de la première polarité et un second demi-pont (T3, T4) pour la commutation de la seconde polarité.
  4. Appareil d'entretien du sol (1) selon l'une des revendications précédentes, l'identification d'un accessoire (2) étant effectuée par la détection d'une influence de l'interface d'alimentation en tension continue (3, 4) dans l'état de la seconde polarité par un ou plusieurs éléments parmi une résistance ohmique (R2), un pont de court-circuit, une extrémité de ligne ouverte, un condensateur ou une inductance.
  5. Appareil d'entretien du sol (1) selon l'une des revendications précédentes, l'appareil d'entretien du sol (1) fonctionnant sur batterie.
  6. Système, comprenant un appareil d'entretien du sol selon l'une des revendications précédentes ainsi qu'au moins un accessoire (2) qui peut être relié de manière amovible à l'appareil d'entretien du sol (1) et qui présente en outre un élément d'identification (R2) configuré pour influencer l'interface d'alimentation en tension continue (3, 4) dans l'état de la seconde polarité afin de permettre une identification par l'appareil d'entretien du sol (1).
  7. Système selon la revendication 6, l'accessoire (2) présentant au moins un composant actif (M) qui peut être alimenté en tension dans l'état relié par l'intermédiaire de l'interface d'alimentation en tension continue (3, 4) dans l'état de la première polarité.
  8. Système selon la revendication 6 ou 7, l'élément d'identification présentant un ou plusieurs éléments parmi une résistance ohmique (R2), un pont de court-circuit, une extrémité de ligne ouverte, un condensateur ou une inductance.
  9. Système selon l'une des revendications 6 à 8, comprenant en outre
    - une première diode (D2) qui est disposée de manière telle que le composant actif (M) se trouve dans le sens passant dans la première polarité ; et/ou
    - une seconde diode (D3) qui est disposée de manière telle que l'élément d'identification (R2) se trouve dans le sens passant dans la seconde polarité.
  10. Système selon l'une des revendications 7 à 8, le composant actif comprenant un moteur (M), un actionneur ou un éclairage.
EP21201809.7A 2020-11-04 2021-10-11 Appareil de traitement du sol à reconnaissance des accessoires Active EP4005448B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020129053.5A DE102020129053A1 (de) 2020-11-04 2020-11-04 Bodenpflegegerät mit Zubehörerkennung

Publications (2)

Publication Number Publication Date
EP4005448A1 EP4005448A1 (fr) 2022-06-01
EP4005448B1 true EP4005448B1 (fr) 2023-08-09

Family

ID=78087115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21201809.7A Active EP4005448B1 (fr) 2020-11-04 2021-10-11 Appareil de traitement du sol à reconnaissance des accessoires

Country Status (4)

Country Link
EP (1) EP4005448B1 (fr)
DE (1) DE102020129053A1 (fr)
ES (1) ES2952685T3 (fr)
PL (1) PL4005448T3 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017100541A1 (de) * 2017-01-12 2018-07-12 Metabowerke Gmbh Mehrzweckstaubsauger
DE102017131460A1 (de) * 2017-06-08 2018-12-13 Festool Gmbh Konfigurationsvorrichtung für ein System mit Werkzeugmaschine und Staubsauger
DE102018126138A1 (de) 2018-10-22 2020-04-23 Miele & Cie. Kg Verfahren und Vorrichtung zum Erkennen eines Typs einer motorbetriebenen Bürste für einen Staubsauger, Verfahren und Vorrichtung zum Betreiben eines Staubsaugers, motorbetriebene Bürste für einen Staubsauger und Staubsauger

Also Published As

Publication number Publication date
PL4005448T3 (pl) 2023-12-11
EP4005448A1 (fr) 2022-06-01
ES2952685T3 (es) 2023-11-03
DE102020129053A1 (de) 2022-05-05

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